Glossary
SINAUT MD741-1
C79000-G8976-C236-05
141
Client / Server
In a client/server environment, a server is a program or computer that
receives queries from a client program or client computer and answers
them.
In data communication, a computer that establishes a connection to a
server (or host) is also referred to as a client. That means that the
client is the computer that is calling and the server (or host) is the one
being called.
CSD 9600
CSD (9600) stands for Circuit Switched Data or dial-in data
connection. Here a connection is created between two users (end
points of the connection), similar to a telephone call over a public
telephone network. User 1 dials the telephone number of user 2. The
network signals to user 2 that there is a call, user 2 accepts the call
and the network establishes the connection until one of the users
terminates the connection again.
In a GSM network this service is called CSD, and allows data
transmission at 9600 bit/s or 14400 bit/s, with transmission being either
secured or unsecured. Possible connections are GSM modem to GSM
modem, analog modem to GSM and ISDN modem to GSM modem.
CSQ / RSSI
The CSQ value is a value defined in the GSM standard for indicating
the signal quality. CSQ values correspond to the received field
strength RSSI (= Received Signal Strength Indication):
CSQ RSSI
< 6
< -101 dBm
6…10 -101…-93
dBm
11…18 -91…-77
dBm
> 18
> 75 dBm
99
Not logged in
